I went to AutoZone and downloaded the code with an ODB II. I took the code and went online and found what the code meant and what part to replace. It was an Engine Coolant Temp Sensor. I went to dealer, got the part and replaced it. The CEL is still on. Should it still be on once the part is replaced or should it turn off by itself? Do I need to clear the code now that it is fixed… if so how do I clear the code?